Plankton community’s production in the water area of the Volga-Kama Biosphere Reserve (Russia)Nadezhda Stepanova, Tatiana Kondratyeva, Konstantin Shevchuk and Oleg NikitinE3S Web of Conf., 539 (2024) 01029DOI: https://doi.org/10.1051/e3sconf/202453901029